NC0020842_Renewal Application_20230302

EPA Identification Number NPDES Permit Number =5now
Name Form Approved 03/05/19
110006710924 NCO020842 WWTP OMB No.2040-0004
Form U.S.Environmental Protection Agency
2A \"/EPA Application for NPDES Permit to Discharge Wastewater
NPDES NEW AND EXISTING PUBLICLY OWNED TREATMENT WORKS
1.1 Facility name
Snow Hill WWTP
Mailing address(street or P.O.box)
P.O.Box 247
City or town State ZIP code
o Snow Hill NC 28580
EContact name(first and last) Title Phone number Email address
Drake Robart Wastewater ORC
c [phone] [e-mail]
Location address(street,route number,or other specific identifier) ❑Same as mailing address
cc 102 Daniel dr
U-
City or town State ZIP code
Snow Hill NC �28580
1.2 Is this application for a facility that has yet to commence discharge?
❑ Yes 4 See instructions on data submission ❑ No
requirements for new dischargers.
1.3 Is applicant different from entity listed under Item 1.1 above?
❑ Yes 0 No 4 SKIP to Item 1 A.
Applicant name
c Applicant address(street or P.O.box)
E City or town State ZIP code
Contact name(first and last) Title Phone number Email address
Q
o.
a 1.4 Is the applicant the facility's owner,operator,or both?(Check only one response.)
❑ Owner ❑ Operator Both
1.5 To which entity should the NPDES permitting authority send correspondence?(Check only one response.)
❑ Facility ❑ Applicant ED Facility and applicant
(they are one and the same)
1.6 Indicate below any existing environmental permits. (Check all that apply and print or type the corresponding permit
number for each.
aExisting Environmental Permits
W ✓�] NPDES(discharges to surface ❑ RCRA(hazardous waste) ❑ UIC(underground injection
water) control)
E NCO020482
c
❑ PSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CAA)
c
W
Cf
C
❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section t
rt V
� 404)
011448 Land ap
MAR 0 2 2023
EPA Form 3510-2A(Revised 3-19) Page 1
NCDEQIDWR/NPDES

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110006710924 NC0020842 Snow Hill W WTP OMB No.2040 0004
1.7 Provide the collections stem information re uested below for the treatment works.
Municipality Population Collection System Type
Served Served indicate ercenta a Ownership Status
Town of Snow 1481 100 %separate sanitary sewer © Own El Maintain
Z Hill %combined storm and sanitary sewer ❑ Own ❑ Maintain
in ❑ Unknown ❑ Own ❑ Maintain
c %separate sanitary sewer ❑ Own ❑ Maintain
%combined storm and sanitary sewer ❑ Own ❑ Maintain
c ❑ Unknown ❑ Own ❑ Maintain
a %separate sanitary sewer ❑ Own ❑ Maintain
%combined storm and sanitary sewer ❑ Own ❑ Maintain
E ❑ Unknown ❑ Own ❑ Maintain
y %separate sanitary sewer El Own ❑ Maintain
%combined storm and sanitary sewer ❑ Own ❑ Maintain
o` ❑ Unknown ❑ Own ❑ Maintain
Total 1481
o Population
Served
Separate Sanitary Sewer System Combined Storm and
Total percentage of each type of
-Sanitary Sewer
sewer line in miles 100
Z' 1.8 Is the treatment works located in Indian Country?
c
' ❑ Yes
El No
U
JB
1.9 Does the facility discharge to a receiving water that flows through Indian Country?
_ ❑ Yes
0 No
1.10 Provide design and actual flow rates in the designated spaces. Design Flow Rate
.500 mgd
Annual Average Flow Rates Actual
cTwo Years Ago Last Year This Year
zC 224 mgd 211 mgd .172 mgd
c Maximum Daily Flow Rates Actual
Two Years Ago Last Year This Year
.699 mgd .689 mgd .710 mgd
1.11 Provide the total number of effluent discharge points to waters of the United States by type.
0 Total Number of Effluent Dischar a Points b Type
n
Combined Sewer Constructed
Treated Effluent Untreated Effluent Overflows Bypasses Emergency
H Overflows
c 1 0
0 0 0
EPA Form 3510.2A(Revised 3-19) Page 2

EPA Identification Number NPD�PermitNumber Facility Name Form Approved 03/05/19
1100067109,24 42 Snow Hill WWTP OMB No.2040-0004
Outfalls Other Than to Waters of the United States
1.12 Does the POTW discharge wastewater to basins,ponds,or other surface impoundments that do not have outlets for
discharge to waters of the United States?
❑ Yes ❑ No 4 SKIP to Item 1.14.
1.13 Provide the location of each surface impoundment and associated discharge information in the table below.
Surface Im oundment Location and Dischar a Data
Average Daily Volume
Location Discharged to Surface Continuous or Intermittent
Impoundment (check one)
❑ Continuous
gpd ❑ Intermittent
❑ Continuous
gpd ❑ Intermittent
gpd ❑ Continuous
a ❑ Intermittent
:S 1.14 Is wastewater applied to land?
❑ Yes ❑ No SKIP to Item 1.16.
0 1.15 Provide the land application site and discharge data requested below.
N Land Application Site and Discharge Data
a
Location Size Average Daily Volume Continuous or
a' Applied Intermittent
s pp check one
o acres gpd ❑ Continuous
0 Intermittent
o acres gpd El Conti nuous
v
❑ Intermittent
yacres gpd El Continuous
❑ Intermittent
CU 1. 66 Is effluent transported to another facility for treatment prior to discharge?
o ❑ Yes ❑✓ No+ SKIP to Item 1.21.
1.17 Describe the means by which the effluent is transported(e.g.,tank truck,pipe).
1.18 Is the effluent transported by a party other than the applicant?
❑ Yes ❑ No 4 SKIP to Item 1.20.
1.19 Provide information on the transporter below.
Transporter Data
Entity name Mailing address(street or P.O.box)
City or town State
ZIP code
Contact name(first and last) Title
Phone number Email address
EPA Form 3510-2A(Revised 3-19)
Page 3

71.20
Fln
ber NPDES Permit Number Facility Name Form Approved 03/05/19
NC0020842 Snow Hill WWTP OMB No.2040-0004
table below,indicate the name,address,contact information,NPDES number,and average daily flow rate of the
vin facility.
Receivin Facili Data
Facility name Mailing address(street or P.O.box)
c
City or town State ZIP code
0
U
0V)
Contact name(first and last) Title
0
s
Phone number Email address
�o
cgtlse
umber of receiving facility(if any) ❑None
y Average daily flow rate mgd
tewater disposed of in a manner other than those already mentioned in Items 1.14 through 1.21 that do not
ats to waters of the United States(e.g.,underground percolation,underground injection)?
El
sesNo SKIP to Item 1.23.
formation in the table below on these other dis osal methods.
Information on Other Dis osal Methods
sal Location of Size of Annual Averageod Daily Discharge Continuous or Intermittent
y Descri tion Disposal Site Disposal Site Volume (check one)
42 acres ❑ Continuous
o gpd ❑ Intermittent
acres gpd ❑ Continuous
❑ Intermittent
acres gpd ❑ Continuous
❑ Intermittent
1.23Lr intend to request or renew one or more of the variances authorized at 40 CFR 122.21(n)?(Check all thatapplyd w t with your NPDES permitting authority to determine what information needs to be submitted and when.)
Discharges into marine waters(CWA ❑ Water quality related effluent limitation(CWA Section
cc: Section 301(h)) 302(b)(2))
❑✓ Not applicable
1.24 Are any operational or maintenance aspects(related to wastewater treatment and effluent quality)of the treatment works
the responsibility of a contractor?
❑ Yes ❑ No+SKIP to Section 2.
1.25 Provide location and contact information for each contractor in addition to a description of the contractor's operational
and maintenance responsibilities.
Contractor Information
Contractor 1 Contractor 2 Contractor 3
o Contractor name
com an name
w Mailing address
_c street or P.O.box
o` City,state,and ZIP
code
c Contact name(first and
U last
Phone number
Email address
Operational and
maintenance
responsibilities of
contractor
EPA Form 3510-2A(Revised 3-19)
Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110006710924 NCO020842 Snow Hill WWTP OMB No.2040-0004
SECTIONI1 • •• • I
c Outfalls to Waters of the United States
C 2.1 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
o ❑ Yes ❑ No 4 SKIP to Section 3.
0 2.2 Provide the treatment works'current average daily volume of inflow Average Daily Volume of Inflow and Infiltration
and infiltration.
4000 gpd
w
Indicate the steps the facility is taking to minimize inflow and infiltration.
Being vigilant in finding sources of infiltration such as improperly sealed manhole,pipe deffects etc.
0
0
r~
c
z 2.3 Have you attached a topographic map to this application that contains all the required information?(See instructions for
i2 r specific requirements.)
0
0
n
�0 ❑ Yes ❑ No
3 � 2.4 Have you attached a process flow diagram or schematic to this application that contains all the required information?
o (See instructions for specific requirements.)
12.5
Yes ❑ No
Are improvements to the facility scheduled?
❑ Yes ❑ No 4 SKIP to Section 3.
o` Briefly list and describe the scheduled improvements.
c
1.
a
E
d
CL 2.
E
0
3.
d
75
d
5 4.
W
2.6 Provide scheduled or actual dates of completion for improvements.
H
Scheduled or Actual Dates of Com letion for Im rovements
E Scheduled Affected Attainment of
c Outfalls Begin End Begin
Improvement Construction Construction Dischar a Operational
(list outfall 9
(from above) Level
number (MM/DD/YYYY) (MM/DD/YYYY) (MM/DD/YYYY) MM/DD/YYYY
d
a�
U 2.
3.
4.
2.7 Have appropriate permits/clearances concerning other federal/state requirements been obtained?Briefly explain your
response.
❑ Yes ❑ No ❑ None required or applicable
Explanation:
EPA Form 3510-2A(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110006710924 NC0020842 Snow Hill WWTP OMB No.2040-0004
3.1 Provide the following information for each outfall.(Attach additional sheets if you have more than three outfalls.)
Outfall Number 001 Outfall Number Outfall Number
State NC
County Greene
City or town Snow Hill
0
c
Distance from shore N/A
n
o Depth below surface 0 ft ft
ft.
Average daily flow rate .172 mgd mgd mgd
Latitude 35° 21 28" NE
Longitude 77° 3Y 35" VEJ °
3.2 Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
o ❑ Yes ❑ No 4 SKIP to Item 3.4.
d
s3.3 If so,provide the following information for each applicable outfall.
u
o Outfall Number. Outfall Number Outfall Number
"0 Number of times per year
C dischar a occurs
a Average duration of each
`o discharge(specify units
Average flow of each
discharge mgd mgd mgd
cn Months in which discharge
occurs
3.4 Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
❑ Yes 0 No 4 SKIP to Item 3.6.
3.5 Briefly describe the diffuser t e at each applicable outfall.
c.
a�
Outfall Number Outfall Number Outfall Number
Vi
O
o N 3.6 Does the treatment works discharge or plan to discharge wastewater to waters of the United States from one or more
discharge points?
3 0 Yes ❑ No-SKIP to Section 6.
RECEIVED
MAR 0 2 2323
EPA Form 3510-2A(Revised 3-19) NCDEQ/®WR/NppES Page 6

7EPAentification Number NP=0020842
mit Number me Form Approved 03l05/19
0006710924 E:TWTP
OMB No.2040.0004
3.7 Provide the receivin water and related information if known for each outfall.
Outfall Number 001 Outfall Number Outfall Number
Receiving water name Contentnea creek
Name of watershed,river,
c or stream system Neuse
CL
U.S.Soil Conservation
Service 14-digit watershed
c code
Name of state
a
management/river basin
U.S.Geological Survey
8-digit hydrologic
W cataloging unit code
Critical low flow(acute) cfs cfs cfs
Critical low flow(chronic) cfs cfs cfs
Total hardness at critical mg/L of mg/L of mg/L of
low flow CaCO3 CaCO3 CaCO3
3.8 Provide the followin information describingthe treatment rovided for discharges from each outfall.
Outfall Number o0, Outfall NumberTO
!Equivalent
Number
Highest Level of ❑ Primary ❑ Primaryary
Treatment(check all that ❑ Equivalent to ❑ Equivalent to to
apply per outfall) � Secondary secondaryndary
ry ❑ Secondaryndary
❑ Advanced ❑ Advancednced
❑ Other(specify) ❑ Other(specify) ❑ Other(specify)
c
0
Design Removal Rates by
y Outfall
as
BOD5 or CBODs 85 % °
d /° %
E
;
F` TSS 85 %
Phosphorus % %
© Not applicable ❑Not applicable ❑Not applicable
Nitrogen
%
® Not applicable ❑Not applicable ❑ Not applicable
Other(specify) 0 Not applicable ❑Not applicable ❑Not applicable
—
% %
EPA Form 3510-2A(Revised 3-19)
Page 7

E71dentification Number NPDES Permit Number Facility Name Form Approved 03105l19
710924 NCO020842 Snow Hill WWTP OMB No.2040-0004
3.9 Describe the type of disinfection used for the effluent from each outfall in the table below.If disinfection varies by
season,describe below.
,a Chlorination
m
c
c
0
L)
o Outfall Number 001 Outfall Number Outfall Number
a Disinfection type chlorine
v
H
m
C
d Seasons used year round
E
M
Dechlorination used?
❑ Not applicable ❑ Not applicable ❑ Not applicable
S Yes ❑ Yes ❑ Yes
❑ No El No ❑ No
3.10 Have you completed monitoring for all Table A parameters and attached the results to the application package?
El Yes ❑ No
3.11 Have you conducted any WET tests during the 4.5 years prior to the date of the application on any of the facility's
discharges or on any receiving water near the discharge points?
❑ Yes ❑r No 4 SKIP to Item 3.13.
3,12 Indicate the number of acute and chronic WET tests conducted since the last permit reissuance of the facility's
discharges by outfall number or of the receiving water near the discharge points.
Outfall Number Outfall Number Outfall Number
Acute Chronic Acute Chronic Acute Chronic
Number of tests of discharge
water
Number of tests of receiving
water
3.13 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
M ❑✓ Yes ❑ No+ SKIP to Item 3.16.
0 3.14 Does the POTW use chlorine for disinfection,use chlorine elsewhere in the treatment process,or otherwise have
reasonable potential to discharge chlorine in its effluent?
0 Yes 4 Complete Table B,including chlorine. ❑ No+ Complete Table B,omitting chlorine.
c 3.15 Have you completed monitoring for all applicable Table B pollutants and attached the results to this application
package?
w 0 Yes ❑ No
3.16 Does one or more of the following conditions apply?
• The facility has a design flow greater than or equal to 1 mgd.
• The POTW has an approved pretreatment program or is required to develop such a program.
• The NPDES permitting authority has informed the POTW that it must sample for the parameters in Table C,must
sample other additional parameters(Table D),or submit the results of WET tests for acute or chronic toxicity for
each of its discharge outfalls(Table E).
❑ Yes+ Complete Tables C,D,and E as
applicable. ❑ No+ SKIP to Section 4.
3.17 Have you completed monitoring for all applicable Table C pollutants and attached the results to this application
package?
0 Yes ❑ No
3.18 Have you completed monitoring for all applicable Table D pollutants required by your NPDES permitting authority and
attached the results to this application package?
0 Yes ❑ No additional sampling required by NPDES
ermitting authority.
EPA Form 3510-2A(Revised 3-19)
Page 8

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110006710924 NCO020842 Snow Hill WWTP OMB No.2040-0004
3.19 Has the POTW conducted either(1)minimum of four quarterly WET tests for one year preceding this permit application
or(2)at least four annual WET tests in the past 4.5 years?
❑ Yes 0 No+ Complete tests and Table E and SKIP to
Item 3.26.
3.20 Have you previously submitted the results of the above tests to your NPDES permitting authority?
❑ Yes ❑ No+ Provide results in Table E and SKIP to
Item 3.26.
3.21 Indicate the dates the data were submitted to our NPDES permittingauthorityand provide a summaryof the results.
Date(s)Submitted Summary ry of Results
WET test not permit required perameter
m
c
0
U
�v 3.22 Regardless of how you provided your WET testing data to the NPDES permitting authority,did any of the tests result in
o toxicity?
❑ Yes ❑ No 4 SKIP to Item 3.26.
3.23 Describe the cause(s)of the toxicity:
c
m
W
3.24 Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑ No+ SKIP to Item 3.26.
3.25 Provide details of any toxicity reduction evaluations conducted.
3.26 F-ave you completed Table E for all applicable outfalls and attached the results to the application package?
Yes © Not applicable because previously submitted
information to the NPDES Permitting authority.
4.1 Does the POTW receive discharges from SIUs or NSCIUs?
❑ Yes ❑✓ No 4 SKIP to Item 4.7.
a 4.2 Indicate the number of SIUs and NSCIUs that dischar e to the POTW.
Number of SIUs Number of NSCIUs
Vi
O
4.3 Does the POTW have an approved pretreatment program?
x ❑ Yes
❑ No
R 4.4 Have you submitted either of the following to the NPDES permitting authority that contains information substantially
identical to that required in Table F:(1)a pretreatment program annual report submitted within one year of the
application or(2)a pretreatment program?
c ❑ Yes ❑ No 4 SKIP to Item 4.6.
4.5 Identify the title and date of the annual report or pretreatment program referenced in Item 4.4.SKIP to Item 4.7.
N
7
'O
c
4.6 Have you completed and attached Table F to this application package?
❑ Yes ❑ No
EPA Form 3510-2A(Revised 3-19)
Page 9

EEPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110006710924 NC0020842 Snow Hill WWI
OMB No.2040-0004
4.7 Does the POTW receive,or has it been notified that it will receive,by truck,rail,or dedicated pipe,any wastes that are
regulated as RCRA hazardous wastes pursuant to 40 CFR 261?
❑ Yes ❑ No 4 SKIP to Item 4.9.
4.8 If yes,provide the followin information:
Annual
Hazardous Waste Waste Transport Method Amount of
Number (check all that apply) Waste Units
Received
❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other(specify)
c
0
U
N ❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other(specify)
0
v
❑ Truck
❑ Rail
❑ Dedicated pipe ❑ Other(specify)
C
H
d
s4.9 Does the POTW receive,or has it been notified that it will receive,wastewaters that originate from remedial activities,
N including those undertaken pursuant to CERCLA and Sections 3004(7)or 3008(h)of RCRA?
❑ Yes
❑ No•+ SKIP to Section 5.
4.10 Does the POTW receive(or expect to receive)less than 15 kilograms per month of non-acute hazardous wastes as
specified in 40 CFR 261.30(d)and 261.33(e)?
❑ Yes+SKIP to Section 5. ❑ No
4.11 Have you reported the following information in an attachment to this application:identification and description of the
site(s)or facility(ies)at which the wastewater originates;the identities of the wastewater's hazardous constituents;and
the extent of treatment,if any,the wastewater receives or will receive before entering the POTW?
❑ Yes ❑ No
• • • • • • t
E 5.1 1 Does the treatment works have a combined sewer system?
L
A ❑ Yes 0 No-*SKIP to Section 6.
5.2 Have you attached a CSO system map to this application?(See instructions for map requirements.)
c
`° ElYes
a ❑ No
0 5.3 Have you attached a CSO system diagram to this application?(See instructions for diagram requirements.)
❑ Yes
❑ No
EPA Form 3510-2A(Revised 3-19)
Page 10

EE7PAJde-nfification Number NPDES Permit Number Facility Name Form Approved 03/05/19
006710924 NC0020842 Snow Hill WWTP OMB No.2040-0004
5.4 For each CSO outfall, rovide the followinginformation. Attach additional sheets as necessary.)
CSO Outfall Number_ CSO Outfall Number CSO Outfall Number
City or town
0
w
State and ZIP code
VJ
N
c County
= Latitude
0
0
CO Longitude
Distance from shore ft. fl tt
Depth below surface ft, ft ft
5.5 Did the POTW monitor any of the following items in the past year for its CSO outfalls?
CSO Outfall Number_ CSO Outfall Number CSO Outfall Number
Rainfall ❑ Yes ❑No ❑ Yes ❑No ❑ Yes ❑ No
a>
c
CSO flow volume ❑ Yes ❑No ❑ Yes ❑ No ❑ Yes ❑ No
•c
0 CSO pollutant
0 concentrations
❑ Yes ❑No ❑ Yes ❑No ❑ Yes ❑No
Receiving water quality ❑ Yes ❑No ❑ Yes ❑No ❑ Yes ❑ No
CSO frequency ❑Yes ❑No ❑ Yes ❑No ❑ Yes ❑No
Number of storm events ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑No
5.6 Provide the following information for each of your CSO outfalls.
CSO Outfall Number— CSO Outfall Number— CSO Outfall Number
Number of CSO events in
the past year events events events
a
Average duration per hours hours hours
event ❑Actual or❑Estimated ❑Actual or❑Estimated ❑Actual or❑ Estimated
a
0 w million gallons million gallons million gallons
Average volume per event g 9 g
❑Actual or❑Estimated ❑Actual or❑Estimated ❑Actual or❑ Estimated
Minimum rainfall causing inches of rainfall inches of rainfall inches of rainfall
a CSO event in last year ❑Actual or❑Estimated ❑Actual or❑Estimated ❑Actual or❑ Estimated
EPA Form 3510-2A(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number �Facilityame Form Approved 03/05I19
110006710924 NC0020842 SWWTP OMB No.2040-0004
5.7 Provide the information in the table below for each of our CSO outfalls.
CSO Outfall Number_ CSO Outfall Number— CSO Outfall Number
Receiving water name
Name ofwatershed/
1211 streams stem
U.S.Soil Conservation ❑Unknown ❑Unknown
Service 14-digit ❑Unknown
watershed code
Z> if known
d Name of state
management/river basin
U.S.Geological Survey 8-Digit Hydrologic Unit ❑Unknown El Unknown ❑Unknown
Code if known
Description of known
water quality impacts on
receiving stream by CSO
(see instructions for
examples)
• •
6.1 In Column 1 below,mark the sections of Form 2A that you have completed and are submitting with your application. For
each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to provide attachments.
Column 1 Column 2
❑ Section 1:Basic Applicatqiii
Information for All Applicantsrequest(s) ❑ w/additional attachments
❑ Section 2:Additionalhic map ❑ w/process flow diagram
Information waonal attachments
Section 3:Information on 0 wl Table A w/Table D
❑ Effluent Discharges El w/Table B ❑ w/Table E
❑ w/Table C ❑ w/additional attachments
Section 4:Industrial ❑ w/SIU and NSCIU attachments ❑ w/Table F
❑ Discharges and Hazardous
w
Wastes ❑ wl additional attachments
❑ Section 5:Combined Sewer ❑ w/CSO map ❑ w/additional attachments
Overflows ❑ w/CSO system diagram
Section 6:Checklist and
❑ Certification Statement ❑ w/attachments
H
6.2 Certification Statement
L 1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted.Based on my inquiry of the person or persons who manage the system,or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true,accurate,and
complete./am aware that there are significant penalties for submitting false information,including the possibility of fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Drake w Robart Wastewater ORC
Signature Date signed
02/24/2023
EPA Form 3510-2A(Revised 3-19)
Page 12

EPA Identifi NPDES Permit Number
110006710924 Facility Name Outfall Number
NCO020842 Snow Hill WWTP Form Approved 03/05/19
OMB No.2040-0004
�. ;.IL
Pollutant Maximum Daily Discharge Average Daily Discharge
Value Units Number of Analytical ML or MDL
Value Units Sam les Method' (include units)
Biochemical oxygen demand
o BOD5 or❑CBOD5 24 mg/I —
report one 3 19 mg/I 52
5210 B-16 2gm/I ❑ML
Fecal coliform El MDL
4000 #/100m1 94.83
#/100m1 54 9222D-15 1/1OOml �ML
Design flow rate .710 MGD ❑MDL
.176 MGD 365
PH(minimum) 6.6
su
PH(maximum) 7.99
su
Temperature(winter) 18.8 C
14.02 c 64
Temperature(summer) 26.7 C
28 C 64
Total suspended solids(TSS) 38 mg/I
5.61 mg/I 52
'Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or❑ML
r
O MDL
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
Z
m M
r n
® T
U
\ 1'J
W
M
EPA Form 3510-2A(Revised 3-19)
Page 13

EPA Identification Number NPDES Permit Number Facility Name Outfall Number
Form Approved 03105I19
110006710924 NCO020842 Snow Hill WWTP OMB No.2040-0004
•' '• • • • •' I 1
Maximum Daily Discharge Average Daily Discharge
Pollutant Number of Analytical ML or MDL
Value Units Value Units Method' (include units)
Samples
Ammonia(as N) 2.62 mg/I 211 mg/I 52 350.1 R2 93 .04m g/I ❑ML
Chlorine O MDL
total residual,TRC 2 28 ug/I 19.04 mg/l 102 SM 4500-CI G 2011 1m /l ❑ML
g O MDL
Dissolved oxygen 11.58 mg/I 8.22 mg/I 52 SM 4500 O G 2016 .01m /l ❑ML
g O MDL
Nitrate/nitrite 6.09 mg/I 2.27 mg/I 52 353.2 R2-93 .04m /I ❑ML
g 2 MDL
Kjeldahl nitrogen 6.17 mg/I 1.59 mg/I 52 351.2 112-93 2m 1 ❑ML
' g/Oil and grease N/A O MDL
❑ML
❑MDL
Phosphorus 5.22 mg/l 1.15 mg/I 52 365.4-74 .04m /I ❑ML
g O MDL
Total dissolved solids N/A ❑ML
❑MDL
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter 1,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
2 Facilities that do not use chlorine for disinfection,do not use chlorine elsewhere in the treatment process,and have no reasonable potential to discharge chlorine in their effluent are not
required to report data for chlorine.
EPA Form 3510-2A(Revised 3-19)
Page 15

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 NC0020842 Snow Hill WWTP OMB No.2040-0004
Lu-
•' 1 ••
Maximum Daily Discharge Average Daily Discharge Analy
tical ytical ML or MDL
Value Units Value Units Number of Method' (include units)
Samples
Metals,Cyanide,and Total Phenols
Hardness(as CaCO3) ❑ML
❑MDL
Antimony,total recoverable ❑ML
❑MDL
Arsenic,total recoverable ❑ML
❑MDL
Beryllium,total recoverable ❑ML
❑MDL
Cadmium,total recoverable ❑ML
❑MDL
Chromium,total recoverable ❑ML
❑MDL
Copper,total recoverable ❑ML
❑MDL
Lead,total recoverable ❑ML
❑MDL
Mercury,total recoverable ❑ML
❑MDL
Nickel,total recoverable ❑ML
❑MDL
Selenium,total recoverable ❑ML
❑MDL
Silver,total recoverable ❑ML
❑MDL
Thallium,total recoverable ❑ML
❑MDL
Zinc,total recoverable ❑ML
❑MDL
Cyanide ❑ML
❑MDL
Total phenolic compounds ❑ML
❑MDL
Volatile Organic Compounds
Acrolein
❑ML
❑MDL
Acr lonitrile ❑ML
❑MDL
Benzene
❑ML
❑MDL
Bromoform ❑ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 17

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 NC0O2O842 Snow Hill WWTP OMB No.2040-0004
'qvqgg rr ••
Maximum Daily Discharge Average Daily Discharge
Pollutant Analytical ML or MDL
Value Units Value Units Number of Method' (include units)
Samples
Carbon tetrachloride ❑ML
❑MDL
Chlorobenzene ❑ML
❑MDL
Chlorodibromomethane ❑ML
❑MDL
Chloroethane ❑ML
❑MDL
2-chloroethylvinyl ether ❑ML
❑MDL
Chloroform ❑ML
❑MDL
Dichlorobromomethane ❑ML
❑MDL
1,1-dichloroethane ❑ML
❑MDL
1,2-dichloroethane ❑ML
❑MDL
trans-1,2-dichloroethylene ❑ML
❑MDL
1,1-dichloroethylene ❑ML
❑MDL
1,2-dichloropropane ❑ML
❑MDL
1,3-dichloropropylene ❑ML
Eth (benzene ❑MDL
y ❑ML
❑MDL
Methyl bromide ❑ML
❑MDL
12h
loride ❑ML
❑MDL
e chloride ❑ML
❑MDL
trachloroethane ❑ML
❑MDL
roethylene ❑ML
❑MDL
❑ML
❑MDL
hloroethane ❑ML
❑MDL
loroethane ❑ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 NCOO2O842 Snow Hill WWTP OMB No.2040-0004
MOM N
Maximum Daily Discharge Average Daily Discharge
Pollutant Analytical ML or MDL
Value Units Value Units Number of Method' (include units)
Samples
Trichloroethylene ❑ML
❑MDL
Vinyl chloride ❑ML
❑MDL
Acid-Extractable Compounds
p-chloro-m-cresol ❑ML
2-chlorophenol ❑MDL❑ML
2,4-dichlorophenol ❑MDL
❑ML
2,4 dimethylphenol El MDL
❑ML
4,6-dinitro o cresol ❑MDL❑ML
2,4-dinitrophenol ❑MDL
❑ML
2-nitrophenol ❑MDL
❑ML
4-nitrophenol ❑MDL
❑ML
Pentachlorophenol ❑MDL
❑ML
Phenol ❑MDL
❑ML
❑MDL
2,4,6-trichlorophenol ❑ML
e-Neutral Compounds
❑MD
L
Acenaphthene ❑ML
Acenaphthylene ❑MDL
❑ML
Anthracene ❑MDL
❑MLBasBezi ❑MDLdine ❑ML
Bzo ) t ❑MDL
en (aanhracene ❑ML
)pyr ❑MDLBenzo(aene ❑ML
,4bzoflu ❑MDL3 oranthene
❑ML
❑MDL
EPA Form 3510-2A(Revised 3-19)
Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 NCOO2O842 Snow Hill WWTP OMB No.2040-0004
yt'
Maximum Daily Discharge Average Daily Discharge Analytical Pollutant cal ML or MDL
Value Units Value Units Number of Method' (include units)
Samples
Benzo(ghi)perylene ❑ML
_ ❑MDL
Benzo(k)fluoranthene ❑ML
❑MDL
Bis(2-chloroethoxy)methane ❑ML
❑MDL
Bis(2-chloroethyl)ether ❑ML
❑MDL
Bis(2-chloroisopropyl)ether ❑ML
❑MDL
Bis(2-ethylhexyl)phthalate ❑ML
❑MDL
4-bromophenyl phenyl ether ❑ML
❑MDL
Butyl benzyl phthalate ❑ML
❑MDL
2-chloronaphthalene ❑ML
❑MDL
4-chlorophenyl phenyl ether ❑ML
❑MDL
Chrysene ❑ML
❑MDL
di-n-butyl phthalate ❑ML
❑MDL
di-n-octyl phthalate ❑ML
❑MDL
Dibenzo(a,h)anthracene ❑ML
❑MDL
1,2-dichlorobenzene ❑ML
I — ❑MDL
1,3-dichlorobenzene ❑ML
❑MDL
1,4-dichlorobenzene ❑ML
❑MD
L
33ichoenzidine ❑ML
❑MDL
iDed a
❑ML
❑MDL
Dimethyl phthalate ❑ML
❑MDL
2,4-dinitrotoluene ❑ML
❑MDL
2,6-dinitrotoluene ❑ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 20

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03105/19
110006710924 NCOO20842 Snow Hill WWTP OMB No.2040-0004
�• 4 4 O ••
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Method' (include units)
Value Units Value Units Samples
1,2-diphenylhydrazine ❑ML
❑MDL
Fluoranthene ❑ML
❑MDL
Fluorene ❑ML
❑MDL
Hexachlorobenzene ❑MIL
❑MDL
Hexachlorobutadiene ❑ML
❑MDL
Hexachlorocyclo-pentadiene ❑ML
❑MDL
Hexachloroethane ❑ML
❑MDL
Indeno(1,2,3-cd)pyrene ❑ML
❑MDL
Isophorone ❑ML
❑MDL
Naphthalene ❑ML
❑MDL
Nitrobenzene ❑ML
❑MDL
N-nitrosodi-n-propylamine ❑ML
❑MDL
N-nitrosodimethylamine ❑ML
❑MDL
N-nitrosodiphenylamine ❑MIL
❑MDL
Phenanthrene ❑MIL
❑MDL
Pyrene ❑ML
❑MDL
1,2,4-trichlorobenzene ❑ML
❑MDL
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I,Subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 21

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 NCO020842 Snow Hill WWTP OMB No.2040-0004
•• 0 I •1 •.
Pollutant Maximum Daily Discharge Average Daily Dischar a Analytical ML or MDL
(list) Value Units Value Units Number of Method' (include units)
Samples
❑ No additional sampling is required by NPDES permitting authority.
Total Nitrogen 11.48 Mg/L 4.05 mg/I 52 ❑ML
❑MDL
Conductivity 723 umhos/cm 588.16 umhos/cm 52 2510 B-11 50umhos/ ❑ML
O MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required
under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 23

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 TNCO020842 Snow Hill WWTP OMB No.2040-0004
TABLE E. EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample.Copy the table to report additional test results.
Test Information
Test Number Test Number Test Number
Test species
Age at initiation of test
Outfall number
Date sample collected
Date test started
Duration
-Toxicity Test Methods
Test method number
Manual title
Edition number and year of publication
Page number(s)
-Sample Type
Check one: ❑ Grab ❑ Grab ❑ Grab
El composite El24-hour composite El24-hour composite
-Sample Location
Check one: ❑ Before Disinfection ❑ Before Disinfection ❑ Before disinfection
❑After Disinfection ❑After Disinfection ❑After disinfection
❑ After Dechlorination ElAfter Dechlorination ElAfter dechlorination
Point in Treatment Process
Describe the point in the treatment process
at which the sample was collected for each
test.
Toxicity Type
Indicate for each test whether the test was ❑Acute ❑Acute ❑Acute
performed to asses acute or chronic toxicity,
or both.(Check one response.) ❑Chronic ❑Chronic ❑ Chronic
❑ Both ❑Both ❑ Both
EPA Form 3510-2A(Revised 3-19) Page 25

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 NCO02O842 Snow Hill WWTP OMB No.2040-0004
TABLE E. EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample.Copy the table to report additional test results.
_F
Test Number Test Number Test Number
Test Type
Indicate the type of test performed.(check one ❑ Static ❑ Static ❑ Static
response.)
❑Static-renewal ❑Static-renewal ❑ Static-renewal
❑ Flow-through ❑ Flow-through ❑ Flow-through
Source of Dilution Water
Indicate the source of dilution water.(check ❑ Laboratory water ❑ Laboratory water ❑ Laboratory water
one response.)
❑ Receiving water ❑ Receiving water ❑ Receiving water
If laboratory water,specify type.
If receiving water,specify source.
Type of Dilution Water
Indicate the type of dilution water.If salt ❑ Freshwater ❑ Fresh water ❑ Fresh water
water,specify"natural"or type of artificial
sea salts or brine used. ❑ Salt water(specify) ❑ Salt water(specify) ❑ Salt water(specify)
Percentage Effluent Used
Specify the percentage effluent used for all
concentrations in the test series.
Parameters Tested
Check the parameters tested. ❑ pH ❑ Ammonia ❑ pH ❑ Ammonia ❑ pH ❑ Ammonia
❑ Salinity ❑ Dissolved oxygen ❑ Salinity ❑ Dissolved oxygen ❑ Salinity ❑ Dissolved oxygen
❑ Temperature ❑ Temperature ❑ Temperature
Acute Test Results
Percent survival in 100%effluent % aka
LCso
95%confidence interval % % %
Control percent survival % % ova
EPA Form 3510-2A(Revised 3-19) Page 26

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110006710924 NCO020842 Snow Hill W WTP OMB No.2040-0004
TABLE E. EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample.Copy the table to report additional test results.
Test Number Test Number Test Number
Acute Test Results Continued
Other(describe)
Chronic Test Results
NOEC % % o
�o
IC25 % % o
�a
Control percent survival
Other(describe)
Quality Control/Quality Assurance
Is reference toxicant data available? ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
Was reference toxicant test within ❑ Yes El No ❑ Yes El No El Yes ❑ No
acceptable bounds?
What date was reference toxicant test run
(MM/DD/YYYY?
Other(describe)
EPA Form 3510-2A(Revised 3-19) Page 27

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
110006710924 NCO020842 Snow Hill WWTP OMB No.2040-0004
INFORMATIONTABLE F.INDUSTRIAL DISCHARGE
Response space is provided for three SIUs.Copy the table to report information for additional SIUs.
SIU SIU_ SIU_
Name of SIU
Mailing address(street or P.O.box)
City,state,and ZIP code
Description of all industrial processes that affect
or contribute to the discharge.
List the principal products and raw materials that
affect or contribute to the SIU's discharge.
Indicate the average daily volume of wastewater
discharged by the SIU. gpd gpd gpd
How much of the average daily volume is
attributable to process flow? gpd gpd gpd
How much of the average daily volume is
attributable to non-process flow? gpd gpd gpd
Is the SIU subject to local limits?
❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
Is the SIU subject to categorical standards?
❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 29

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110006710924 NCO020842 Snow Hill WWTP OMB No.2040-0004
TABLE F.INDUSTRIAL DISCHARGE INFORMATION
Response space is provided for three SIUs.Copy the table to report information for additional SIUs.
SIU SIU_ SIU_
Under what categories and subcategories is the
SIU subject?
Has the POTW experienced problems(e.g.,
upsets,pass-through interferences)in the past 4.5 ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
ears that are attributable to the SIU?
If yes,describe.
EPA Form 3510-2A(Revised 3-19) Page 30

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Snow Hill WWTP Facility
NPDES Permit NCO020842 Location
Latitude: 350 27' 28" N Sub-Basin: 03-04-07 not to scale
Longitude: 77' 39' 35" W Stream Class: C-Swamp NSW
Receiving Stream: Contentnea Creek North Greene County

MAYOR TOWN MANAGER
DENNIS K. LILES 465 �Ir�fri TODD WHALEY
MAYOR PRO-TEM FINANCE OFFICER
ROSA S.WILKES OMA BEA LOCKAMY
COMMISSIONERS t .�� TOWN CLERK
DIANNE J. ANDREWS ' 1� LAQUITA DAVIS
GERALDINE E. SHACKLEFORD +•�•
LORRINE B. WASHINGTON *r CHIEF OF POLICE
FAYE DANIELS � 1 JOSH SMITH
Ur tin
Attached is the Town of Snow Hills formal application to renew its Wastewater Permit.
Please contact us for any permit application questions at the information listed below.
Thank you.
2/27/23
Drake Robart Wastewater ORC Date
Drake Robart WW ORC
Cell: 5213 RECEIVED
Email:[e-mail]
MAC; 0 2 2023
NCDEQ/DWR/NPDES
TOWN OF SNOW HILL 908 SE SECOND ST. SNOW HILL, NC 28580 [phone] FAX [phone]
www.snowhillnc.com